Early detection of heartwood rot caused by Fistulina hepatica in Castanea sativa productive coppices through low-invasive resistance drilling

IF 3.1 2区 农林科学 Q1 FORESTRY Wood Science and Technology Pub Date : 2024-11-13 DOI:10.1007/s00226-024-01616-4
Andreu Meijer, E. Jordán Muñoz-Adalia, Eduard Correal-Mòdol, Carlos Colinas
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Abstract

Chestnut Red Stain (CRS) is a heartwood discoloration that widely affects Castanea sativa Mill. productive coppice stands in the northeast of Spain. At the early stages of infection, the structural properties of the wood are not affected, but still its economic value drops up to 70% due to the rejection of this wood. This disease is caused by the fungus Fistulina hepatica (Schaeff.) With. and causes uncertainty to forest managers since the fungal infection is virtually impossible to detect before felling. The objective of this work was to develop an efficient detection method to evaluate the presence of F. hepatica in early stages of productive periods. A total of 72 chestnuts were analyzed through molecular methods to determine the presence of F. hepatica and with an IML resistance drill to characterize their wood. Thirteen wood quality indices were calculated and their correlation with the presence of the pathogen was evaluated using linear mixed models. We found clear differences between healthy and infected trees in four indices. A new specific index (Chestnut Red Stain Danger index) was designed to estimate the probability of infection by F. hepatica. The results support the hypothesis that the early presence of F. hepatica is detectable through inexpensive and fast mechanical methods early in a rotation. The results of this work will help forest managers evaluate the incidence of CRS, as well as it establishes a novel methodology for further development of resistance drilling techniques for heartwood rot detection.

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通过低侵入性抗性钻探,及早发现蓖麻高产灌木中由肝蓟马引起的心材腐烂病
栗木红斑(CRS)是一种心材变色现象,广泛影响西班牙东北部的栗木(Castanea sativa Mill.在感染初期,木材的结构特性不会受到影响,但由于这种木材被拒收,其经济价值仍会下降高达 70%。这种疾病由真菌 Fistulina hepatica (Schaeff.) With.这项工作的目的是开发一种有效的检测方法,以评估在丰产期早期是否存在 F. hepatica。通过分子方法分析了总共 72 颗栗子,以确定是否存在肝包虫病,并使用 IML 抗性钻孔机分析了木材的特征。我们计算了 13 项木材质量指标,并使用线性混合模型评估了它们与病原体存在的相关性。我们发现健康树木和受感染树木在四项指数上存在明显差异。我们还设计了一个新的特定指数(栗红褐斑危险指数)来估算被肝蝇疫菌感染的概率。研究结果支持这样的假设,即在轮伐初期,可以通过廉价、快速的机械方法检测到肝包虫的早期存在。这项工作的结果将有助于森林管理者评估 CRS 的发生率,并为进一步开发用于心材腐烂病检测的抗性钻孔技术提供了一种新方法。
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来源期刊
Wood Science and Technology
Wood Science and Technology 工程技术-材料科学:纸与木材
CiteScore
5.90
自引率
5.90%
发文量
75
审稿时长
3 months
期刊介绍: Wood Science and Technology publishes original scientific research results and review papers covering the entire field of wood material science, wood components and wood based products. Subjects are wood biology and wood quality, wood physics and physical technologies, wood chemistry and chemical technologies. Latest advances in areas such as cell wall and wood formation; structural and chemical composition of wood and wood composites and their property relations; physical, mechanical and chemical characterization and relevant methodological developments, and microbiological degradation of wood and wood based products are reported. Topics related to wood technology include machining, gluing, and finishing, composite technology, wood modification, wood mechanics, creep and rheology, and the conversion of wood into pulp and biorefinery products.
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